So I just got my Ark playset, and I was a little concerned that the previous reports of there being no way to connect the other playsets were true. It turns out, you can connect the smaller playset to the Ark, in fact I have found 8 connection points total in base mode. (4 male and 4 female) For those who aren't familiar, with them each smaller playset has had a female port on the left side and a male connector on the right (BB's playset actually has a second male connector on the back side). I have had one problem with the connectors though: if you connect the smaller playsets together, they slide in very nicely from the side. With the Ark you have to snap the female side over the male. This unfortunately caused some pretty bad stress marks when using the male Ark connector with the small playset's female port. Sorry the pics are low quality; this wasn't meant to be a pictorial review (like the really nice one posted today). Another piece of bad news: batteries are NOT included.